A circular disk begins rotating from a stationary position around its central axis with a uniform increase in its rate of spin. At one time, its rotational speed is 10 rev/s. After completing an additional 60 full turns, the disk’s rotational speed is observed to be 15 rev/s. Determine the following:

(a) the angular acceleration,

(b) the duration it takes to complete the 60 revolutions,

(c) the time required for the disk to reach the 10 rev/s speed, and

(d) the total number of rotations executed from the moment the disk starts turning until it reaches the 10 rev/s speed

Answer rating: 100% (QA)

a To find the angular acceleration we can use the formula f i t where f final angular velocity 15 re... View the full answer